Adjustable chimney-jack.



A. F. STURGEL.

ADJUSTABLE CHIMNEY JACK.

APPLBCATION min JULY 30.1911.

Patented Dec. 18,191?! I: s aw-E 3140c 41 for A.F, Z2uye z s apertureson one side oi the chimney and STATES PATENT OFFICE. mew ewe-e To all wjom it may concern-t,

Be it' u n" thritI, 'F. Sg'onosL, a citizenof the United States, atLexington, in the county i-Fayette and State ofKentucky,"haiv'e"invented certain-new and e l m roveme ts i Adj st ble 01 1 ny Jzlcks' and 'I'do declare the faunas" to be afull, clear, andexact description '0 'the invention, such as will enable others ofconstruction and in the arrangement of the several parts as described inthe specification and claim and clearly illustrated in the accompanyingdrawings which form a part of this application and in wlnch:

F i re 1 represents a perspective view, showing the application oi thead ustable Jack.

Figs.- 2 and 3 are transverse sections taken I on line 2-2 and 33 ofFig.1 respectively.

' device ma The preferred embodiment of my invention as illustrated isshown applied to a chimney G in order that the 0 ject of the be readilyseen.

The ad ustable chunney jack comprises a air of referablv flat bars orscaffold cards 1 ormed of wood or metal, and when formed of woodreinforced on their upper edges with metal strips 2, which are securedto the wooden boards by suitable fastening 1 elements. The bars areprovided with a plurality' of alined apertures spaced at intervals romtheouter ends of said bars to- '.ward their centers for a purposeto beseen positioned on the opposite sides of a chimney,.

when inuse, and held in place by connecting them with a pair of clampingbolts 8 each having at one end. an eye or finger loop 4 and its otherend threaded, each of said bolts attending rough a pair of alined Ispecification cffett ers iat cnt. i ace-earns rh es; seafarers-sass. I

provided was a an 5; preferably having an operating-plot er 6. Tlic'nl'its are screwed (income bolts 3 sun]: the bars or sd'iiifoill baa-usa etightly cnmpeazlag'itihst are side's of-th'cchimi'iy. v i

For the purpose of supporting a workman 'si'lpp'drted adjacent the outerends of the bars or boards 1 on the upper edges thereof. Secured to thelower face of each standing board or platform .7 is a fiat metal bar 8,spaced from the board, and having upwardly right-angularly bent ends 9whose ends are bent outwardly in opposite directions to form attachingfeet 10 which are secured to the board by anysuitable fasteningelements.

The rightan ularlv bent ends 9 are pro vidcd intermediate their lengthswith horizontally alined apertures adapted to be alined with any pair ofthe apertures in the bans or boards 1, and through which alincdapertures are adapted to pass bolts 11 each having on one end an eye orfinger loop 12.

In operation the bars may be adjusted to a chimney of any size and atany height and held in position by tightening the clampin bolts 3, andthe platforms 7 may be adjustc to any desired positions on the bars byremoving the bolts 11, shifting the platforms and then replacing thebolts. TlllS method of mounting the platforms prevents any longitudinalmovement of the platform or any tilting movement of the same, whichwould be caused by the outer edge 7 coming in contact with the slopingportion of the roof. Also this means of attaching the platform allowsthe distance between the bars to be varied owing to the. fact that thearms of the U-shaped bracket can be disposed between the bars or thebars can be laced between the arms of the bracket. 1: will therefore beseen that the distance between the bars can be greatly varied withoutaffecting the attaching means of the platform.

From the foregoing description of the construction and operation of myimprovedthe opposite sides of "a chi'mne mezins b'etweemt e platformsand thebars,

whereby 41o"- ?p'revent; any-1ongit1idina1 or tilting moypment of I 0;platform, said U}. shitped' jb ragzkeb; and Said second mentionedv 1bolts'lzallowi'ng the distance be'twgnfsaid .bar's: 2b

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